Index: wp-admin/includes/meta-boxes.php
===================================================================
--- wp-admin/includes/meta-boxes.php	(revision 17784)
+++ wp-admin/includes/meta-boxes.php	(working copy)
@@ -875,11 +875,11 @@
 <table class="form-table" style="width: 100%;" cellspacing="2" cellpadding="5">
 	<tr class="form-field">
 		<th valign="top"  scope="row"><label for="link_image"><?php _e('Image Address') ?></label></th>
-		<td><input type="text" name="link_image" class="code" id="link_image" size="50" value="<?php echo ( isset( $link->link_image ) ? esc_attr($link->link_image) : ''); ?>" style="width: 95%" /></td>
+		<td><input type="text" name="link_image" class="code" id="link_image" size="50" maxlength="255" value="<?php echo ( isset( $link->link_image ) ? esc_attr($link->link_image) : ''); ?>" style="width: 95%" /></td>
 	</tr>
 	<tr class="form-field">
 		<th valign="top"  scope="row"><label for="rss_uri"><?php _e('RSS Address') ?></label></th>
-		<td><input name="link_rss" class="code" type="text" id="rss_uri" value="<?php echo  ( isset( $link->link_rss ) ? esc_attr($link->link_rss) : ''); ?>" size="50" style="width: 95%" /></td>
+		<td><input name="link_rss" class="code" type="text" id="rss_uri" value="<?php echo  ( isset( $link->link_rss ) ? esc_attr($link->link_rss) : ''); ?>" size="50" maxlength="255" style="width: 95%" /></td>
 	</tr>
 	<tr class="form-field">
 		<th valign="top"  scope="row"><label for="link_notes"><?php _e('Notes') ?></label></th>
Index: wp-admin/edit-link-form.php
===================================================================
--- wp-admin/edit-link-form.php	(revision 17784)
+++ wp-admin/edit-link-form.php	(working copy)
@@ -85,7 +85,7 @@
 <div id="namediv" class="stuffbox">
 <h3><label for="link_name"><?php _e('Name') ?></label></h3>
 <div class="inside">
-	<input type="text" name="link_name" size="30" tabindex="1" value="<?php echo esc_attr($link->link_name); ?>" id="link_name" />
+	<input type="text" name="link_name" size="30" maxlength="255" tabindex="1" value="<?php echo esc_attr($link->link_name); ?>" id="link_name" />
     <p><?php _e('Example: Nifty blogging software'); ?></p>
 </div>
 </div>
@@ -93,7 +93,7 @@
 <div id="addressdiv" class="stuffbox">
 <h3><label for="link_url"><?php _e('Web Address') ?></label></h3>
 <div class="inside">
-	<input type="text" name="link_url" size="30" class="code" tabindex="1" value="<?php echo esc_attr($link->link_url); ?>" id="link_url" />
+	<input type="text" name="link_url" size="30" maxlength="255" class="code" tabindex="1" value="<?php echo esc_attr($link->link_url); ?>" id="link_url" />
     <p><?php _e('Example: <code>http://wordpress.org/</code> &#8212; don&#8217;t forget the <code>http://</code>'); ?></p>
 </div>
 </div>
@@ -101,7 +101,7 @@
 <div id="descriptiondiv" class="stuffbox">
 <h3><label for="link_description"><?php _e('Description') ?></label></h3>
 <div class="inside">
-	<input type="text" name="link_description" size="30" tabindex="1" value="<?php echo isset($link->link_description) ? esc_attr($link->link_description) : ''; ?>" id="link_description" />
+	<input type="text" name="link_description" size="30" maxlength="255" tabindex="1" value="<?php echo isset($link->link_description) ? esc_attr($link->link_description) : ''; ?>" id="link_description" />
     <p><?php _e('This will be shown when someone hovers over the link in the blogroll, or optionally below the link.'); ?></p>
 </div>
 </div>